I have long been puzzled by the usage of 'verb + not'. For example, Kennedy said, "... my fellow Americans, ask not what your country can do for you, ask what you can do for your country." The Bible ...

I'd like to know how the sentence "That don't impress me much" sounds to a native English speaker.
The phrase is the title of a song by Shania Twain, and to my eyes it contains a clear error. It is ...

Modern English seems to require this verb in several circumstances, where most other European languages don't seem to need it. (See? I just used it.)
For example, in questions: "Do you have a dog?" ...

I often hear the usage "don't got" in American English as spoken on TV programmes. Recently I was watching season four of "Prison Break" and one character, an Asian computer wizard, repeatedly used ...